Function

attr (type, options) Attribute public

Defined in ../packages/model/addon/-private/attr.js:14

type

String|Object

the attribute type

options

Object

a hash of options

returns

Attribute

attr defines an attribute on a Model. By default, attributes are passed through as-is, however you can specify an optional type to have the value automatically transformed. Ember Data ships with four basic transform types: string, number, boolean and date. You can define your own transforms by subclassing Transform.

Note that you cannot use attr to define an attribute of id.

attr takes an optional hash as a second parameter, currently supported options are:

• defaultValue: Pass a string or a function to be called to set the attribute to a default value if and only if the key is absent from the payload response.

Example

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import Model, { attr } from '@ember-data/model';

export default class UserModel extends Model {
  @attr('text', {
    uppercase: true
  })
  text;
}

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import Transform from '@ember-data/serializer/transform';

export default class TextTransform extends Transform {
  serialize(value, options) {
    if (options.uppercase) {
      return value.toUpperCase();
    }

    return value;
  }

  deserialize(value) {
    return value;
  }
}